import multiprocessing
import time

def dance():
    for item in range(1, 5):
        print("跳舞...")
        time.sleep(0.2)
        pass
    pass

def sing():
    for item in range(1, 5):
        print("唱歌...")
        time.sleep(0.2)
        pass
    pass


if __name__ == "__main__":
    # group 进程组，默认是None，一般不会使用
    # target 所需要执行的任务
    # name 进程名，默认是process-1,2,.....
    # args 参数（元组类型）
    dance_process = multiprocessing.Process(target=dance)
    sing_process = multiprocessing.Process(target=sing)
    
    sing_process.start()
    dance_process.start()
